Two front axle are multiloop hydrostatic steering system for heavy -duty car

The utility model provides a two front axle are multiloop hydrostatic steering system for heavy -duty car, includes first axle, second axle, first servo -cylinder, second servo -cylinder and third servo -cylinder, its improvement lies in: first servo -cylinder and third servo -cylinder correspond a hydraulic circuit, and the second servo -cylinder corresponds the 2nd hydraulic circuit, be provided with an auxiliary pump among the hydraulic circuit, a hydraulic circuit provides hydraulic pressure by the auxiliary pump, be provided with a main pump and a plunger pump among the 2nd hydraulic circuit, the 2nd hydraulic circuit one in by main pump and plunger pump provides hydraulic pressure. The utility model discloses an useful technological effect is: the utility model provides a two front axle are multiloop hydrostatic steering system for heavy -duty car, under the normal condition, this a steering system can provide powerful power -assisted steering for the heavy -duty car, guarantees the flexibility that tur